Javascript(I guess) Preloader

Hey everyone,

What I want to do is have a good chunk, if not all of my images to be preloaded a la lostinbutter.
Basically what I want to do is when the user enters my splash page is for the images to instantly start loading, and once they click on the link to enter that maybe a preloader in a pop up opens up, or it just takes you to a page with a preloader or something along those lines. I figure it would make it faster to navigate and what not.

Thanks a lot:beam: